Digital guide
You are here:
- Home
- Kollmorgen
- Kollmorgen M-805-A-99-R12-051
Kollmorgen M-805-A-99-R12-051
Model Series: M-Series (Compact Brushless Servo Motor)
Product Overview:
Compact high-dynamic brushless servo motor optimized for space-constrained applications requiring rapid response and high bandwidth. Features integrated multi-turn absolute encoder with durable construction.
Detailed content
Technical Specifications:
| Parameter | Value |
|---|---|
| Frame Size | 85mm (M-805) |
| Flange Diameter | 85mm |
| Winding Code | A |
| Option Code | 99 (Standard Configuration) |
| Encoder Type | R12 (Multi-turn Absolute, Hiperface) |
| Encoder Resolution | 4,096 counts/rev (12-bit single-turn) + 128 turns multi-turn |
| Shaft Type | 051 (Keyed shaft, DIN 6885-1) |
| Continuous Torque | 0.55 Nm |
| Peak Torque | 1.65 Nm |
| Max Speed | 6,000 RPM |
| Rated Voltage | 48 VDC (winding A) |
| Motor Weight | Approx. 0.65 kg |
| Protection Rating | IP65 (with connector) |
| Thermal Time Constant | ~8 minutes |
Material Composition:
- Stator: Non-oriented silicon steel laminations
- Rotor: Neodymium Iron Boron (NdFeB) permanent magnets
- Housing: Die-cast aluminum with anodized finish
- Shaft: Hardened alloy steel (AISI 4340)
- Bearings: Sealed angular contact ball bearings (pre-lubricated, lifetime)
Structural Features:
- Compact cylindrical design with rear-facing connector
- Keyed shaft with DIN 6885-1 profile
- Single-cable exit (M23 connector)
- Balanced rotor for low vibration operation
Working Principle:
Three-phase brushless commutation driven by external servo amplifier. Rotor position detected by Hiperface encoder; amplifier generates six-step or sinusoidal commutation. Multi-turn absolute encoding retains position across power cycles (128 turns = 46,080 counts total).
Key Advantages:
- Extremely compact 85mm frame for tight spaces
- 6,000 RPM max speed for high-speed applications
- Multi-turn absolute encoder — no homing required after power loss
- Keyed shaft (051) for direct coupling to gears/pulleys
- High bandwidth suitable for fast servo loops (>1 kHz)
Applicable Industries:
- Semiconductor equipment
- Medical devices
- Laboratory automation
- Small robotics
- Pick-and-place machines
Installation Requirements:
- Mount using M4 mounting holes, torque to 3 Nm
- Shaft alignment: ≤ 0.03mm TIR
- Ambient: -10°C to +45°C
- Minimum 50mm clearance for heat dissipation
Usage Precautions:
- Do not apply axial loads exceeding 50 N on shaft
- Connector pin assignment must match drive; incorrect wiring damages encoder
- Do not operate above 6,000 RPM continuously (bearing life reduction)
- Store with shaft protected; do not drop motor











